Fireproof floor.



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EDWIN it. STORM, or NEW YORK, N. Y.

FIREPnooF FLOOR.

To all whom it may concern Be it known that I, EDWIN R. STORM, a citizen of tlie United States, residingat New York, in the County of New York and State of New York, have invented a new and u seful Fireproof Floor, of which the following is a specification. I

My invention relates to improvements in fireproof floor construction in which steel and concrete'are used;.and'tlie objects of my improvement are,'first, to provide a fireproof form that will receive the concrete and constitute a permanent portion of the floor; second, to provide for the concrete a fireproof form that may be placed in position with little or no false work; third, to proF vide a fireproof .protection to the concrete; fourth, to provide a reinforcement for both the form and the concrete; fifth, to provide a ireproofprotection of concrete and the form completely incasing-v the steel usedin the floor construction; and, sixth, to provide a meaiisfor forming a flat'v or a panelcd ceiling. Ijattain these objects by the devices illustrated in'the accompanying drawings in which- Figure 1 represents a. section of atypical floor showing the ireproof form and its steel reinforcement used in connection with steel beams. The conciete vis also shown in place with its reinforcement. Fig. 2 is Aa plan view of the floor construction indicated in Fig. 1, and shows the beams, the blocks coinposing the'fireproof form vin place, the rein forcement and the concrete. Fig. 3 Vrepresentsa section of a typical 'floor showing the fireproof form and its steel reinforcement used in connection with the steel reinforcement of a concrete beam.A The concrete is also shown in place with reinforcement. Fig. 4 is a sectional viwbf the reinforcement for the forni, showing the hooked ends and the method of roughening the surface.

Fig. 5 is an isometrcal view of .the stirrup placed on the 'end of the reinforcement. Fig. 6 is aefaceview of the blank before be'- ing bent into the stirrup form. Fig. 7 is an isometricalprojection of one of the skewback blocks showingr the back or face toward the beam. Fig. 8 is an isometrical projee tion of one of the skew-.back blocks-sbonk ,ing the front or face toward the key. Fig.

9 is anisometrical projection of the key or filling-piece between the two skew-backs Fig. 10 is a section?1 view of a iireproof Hoor showing the fireproof form molded so as to Specification of Letters Patent.

Patented July 4., 1916.

` .Application filed February 23, 1911. Serial No. 610,360.

produce a paneled effect to the ceiling formed by the under side of the Iloor when it is completed'andftlieceiling plastered.

FigL llkrepresents a section 'of a floor show` ing a modification of the ireproof form adapted for moderate spans. The concrete is also shown in place with its reinforcement. Fig. 12 is an isometrical view of the lireproof form shown in Fig. 11. Fig. 13 is an isometrical view of a cover-plate. Y

Similar letters refer to similar parts throughout the several views.

The skew-back block A is preferably formed with walls a, b, c and d, so joined that when the block Ais in position in the Hoor, the wall a will form a portionlof the Y,

mold for the side of the concrete protection to 'a floor beam, or a portion of the mold for the side of a concrete beam; the wall b `will form a portion of the mold for the bottom of the concrete protection to a Hoor beam or a v portion of the mold for the bottom of a concrete beam; the Wall c will form a portion of the mold for the bottom of the concrete floor arch; and the walls d will furnish support the weight of the concrete before it sets. See Figs. 1 and 2.r

The walls d are formed with the indents c of a suitable shape to fit over the steel, whether it be a beamer reinforcement. See Figs. 1, 3 and 7.

The front f, or face toward the key formed so that the upper arris, or edgeqoff:Y

is nearer the back of the block thantlie lower arris, or edge, of b. The surface f which will be formed of one end of eachof the Walls b, c and d will, in the preferred form, lie in a plane. See Figs. 1, 2, 3, 7 and 8.

The key, or filling-piece, B, between the two skew-back blocks A and A', Figs.` 1, 2A

and 3, is formed with a Wall or web g, a bottom wall, or flange, h, and a top Wall, or Harige, z', and has its end l formed tolfit the faces f and f of the blocks A and A". See

'may be of any desired Shape andsize and is adapted to receive the end g of the reinport for the Walls a, b and c, and also sup-v.

`forcement D. I See Figs. 1, 2, 3, 5 andl 6.

AThe*reinforcement D is formed offany suitable size and sha-pe,v preferably, with its su'rfacei ronghened, the preferred form beingl indicated in F ig. 4. which showsportionsfl of the metal 'depresmd below t Y e general 'siirfaee onfone-'s" e and raised,v as i2, the corresponding -distai'iee on the opposite side'. "'I.`h`e advantage of this form of roiigln cning b e'ingtolobtain the roughened surface without .decreasing the tensile` strength of the reinforcement-i' adding 'ei-tra material to prod 'u'ce the roiigliened portions. In

'some of the drawings-theconi'ex or raised portions2 are shown` o n vthe upper s ide but y .In vconstructing the vinA practiee'they would' probably be 4on the beams are used -place the skew-back block zii Y 1 Asurface-tjot the indents e bearing,r on the upper ,surface of the flange s; then, sup-v A `ivith its'v baektowa'rd the beam I and the 'sol eacliside I of lthe `iniddl` wall "d `and bearing.

bearing against the face the hole "androtating rris orL-"ei' gelbetweent and se-necessar' liookthe endjfr of the 'allowingfvthe block 'QA to ro'- itl is uppoited at the front by, 'the surfaeesl' of Vth.'e` walls d resting on theflange The block being thus rig# `idly supported hy the beam? I. SeeFigs. l,

I 2. 7 and Likewise, place the skew-back block A with itsback towardfthe beam' l' and the surface t' o f'the indents c hearing supporting the frontend hyliand;l place the stirrup Cfinposition with a. finger m lon each side ofi the middle wall (1,'- and bearing against the underlsifiiface of the wall c and the p'ortion `u bearing-zigainst'the face f'. Next' passthehook q of the' reinforcement D', through the hole p,`and, rotating the block A on Ithearris between 1f' and 'v' asfar as necessary,v hook the end "r of the reinforcement D' 'oi/er the flange u of the floor beam I,` allowing the block A to rotate back untilit is supported at the front bythe reinforcement D and at the back by the surfaces t of the wallsd restingr on the 'flange .1.5 See Figs. 1 and 2. Next place the key; or fillingr piece, B in the space between the two skew-back blocks Avand A in siieh a position that the wall g will be a continuation of the walls (l and d', as indicated in Fig. "l, and the surfaces L and l' bear against the surfaces-f and' f. Sec Fifrs. l, 2 and fl. i

lly repeating (he above process until vthe spaces between :ill the beams throughout their lengths have been filled. there will` have heenconstruchxd a forni, for thtilconv cri-te which is not only `selffsiistaininig but which becomes a 'permanent -vpart ol"v the floor eonstriictiou'l saying lhe cost; of creatri- .ing and tearing down fori'ns.A Also, where the blocks A, ll and A.' arc made of' ireproof materials1 the forni becou'xes a part of the protection -t.o' the steel-work.

By filling;r thevspaife above the wallet,- be..

tween the beam and the Walla, and 'above the wall l.' with concret-el?, burying the ifein forcement w :iccordingfto the' presentl lnactice, there. will have been constructed a. thoroughly `iifep-ri-mlfloor having vthe 'steel protected by the concrete,and the concrete .in turn protected ,by a ire-[noof inatizi'ia-l,"A

or, if the blocks-arenfornied .of burnt clay, by a material that has been through firef` viz., withstood :i higherixheat in burning L than would 'probably lie-generated in an ordinary conlagra'tioii.1 `See Figs.' il and vThe reinforeemeiitDgiiotfojiilv-serves to hold thefbloeks;\ and lie-fore the key is in position and toini'eise thpacity'of theforin after the with the saine ai'nonnt of 'inctal than 'wlficre' thel metal is a l placed intl ie' reitnlforeennen tw.

.T he walls I; audhfscrydas asin-'face torre-2 ceive the plastering Ich@ 1 in Fig. ain-*india which the bloclcsdfli ani to form the ino'ld -for afrolnforeed concrete.

sed d beam and loor. The reinforcement 4lioijtlic beam being rodsindieated in lsection by. 11;, :11. The saine reinforcement l) as is shown;

in Fig. l may be nsedjor it' may be modified by forming -tlie two reinforcements of a.

single piece of steel :Ls is indiited by'D2,

NVheie it is desired toproduce p'aneled effects the portion of-.the wall I) in front of a that .is to form a part ofthe panel and the wall )t may be raised anydesired distance.

iis

i. -The walls d and g above thein being raised also, its indicated in Fig. l0, where ing wallsfi, it may in practice have any Y number, asone, two, three, or more. If

formed with one Walid it would be formed similarly to an end of A shown in Fig. 12. That is, it would :have anI section corre spending to the section of B, Fig. 0. The Wall a wouldconnect the Walls b and c and be of the same Width as and c, and the wall (l would project beyond as in F ig. 12, and be formed with an indent c and bearing surface t as in Fig. 7. The front end f beingr formed to fit against the surface/Z of the key P.

In Fig. 11 iS Shown a modication of the mold for ilse Where the span between the beams is not too great. This in effect. forms the blocks. A,B and A in one piece A3 having the Walls a3, b3, c and di. The ends ot the walls da being cut away to form the bearing surfaces t3. It desired, the portion of L extending under the lower flange of the beam la may be omitted and a cover-plate Y used, having the rabbets 51/ formed to tit the rabbets Z. See Figs. 11.I 12 and 13. lVhile. the wall la may be formed as in Figs. 1 and 3 it may be extended any distance, above the wall c and the portion above be undercut or dovetail in section, as indicated in Fig. 12. This block When in place would present the cover-plate Y, the adjacent portions of the walls b3, the walls a, and the walls c3, as the, retaining Walls for the concrete filling F3; while the underside. of the cover-pla'te 1/ and of the walls 7), would constitute the surface to receive the plaster M3 for the ceiling. See Fig'. 11.

The blockA.3 is shown with its ends pro. vided with teeth 3, see Figs. 11 and 12. The teeth 3ser\"e. to form additional bearing.r Surface after the concrete has hardened. lt is not nussary that the additional bearing Surface ta te the form indicated an)v piojeetion would form a hearing.

As the`essentially new element ol, my iinproved chnstruction is a form or nlohl to remain permanently in place and be filled. with concrete, it will he Seen that the shape of the form or blocke.. must vary to meet the conditions of the floor sysitem o1( which it is a component. I do not. therefore, wieh to be understood as confining myaelf to the forms indicated.

Havingr described my invention, I claim and desire to secure by Letters Patent im Claims-- 1. ln a concrete floor system. a bearingr beam; arch-blocl havingr vertical snetainn ing walls perpemlicnlar to, and adapted to engage with the bearing beam; and retaining walls between the sustaining walls adapted to lorm a mold for the concrete that is to surround the tcneion portion ol' the beam.

Q. ln a concrete floor system. a bearing' beam; arch-blocks ha ving' vertical fao-ian. 'inlgr walls` lwrpcmlicnlar to. and adapted to engage with. thc l,-e:|i-in; Y beam: retaining walls between the :snstainingv walls adapt-i to form a mold for the concrete at the hotv4 tom of the beam; retainingr walle between the sustaining walls adapted to form a inold t'or the floor; a concrete lilling on the retaining walls .tor the beam and the lloor; and a reinforcing rod connected to the beam and to the forward end ol' the arch-block, and adapted to unite with and strengthen the concrete.

Il. ln a lloor System having a concrete filling.y a series of bearing' brame; arithblocli's having vertical enetaininyj walky perpendicular to. and adapted lo engage one end with a bearing bram: retaining walls between the sustaining); walls adapted to form a mold for the concrete Surroundingthe tension portion ot the beam: retaining walls between the webinar; e' adapted to become parl ot' a concreti* forming; the floor: reini -l connect ed to lli-n lwanw and to ward rnd o cach blorli. and alla ,tid to :mite with am strengthen the conci-efe: lillinfl-pieces` having` sustaining wal'-; adapted to bear againetthe sustaining walle nl' the Said arilrblork: :nd retaining walh lwtvi'en the sufltaininzgvr walls ot' the said fillingpieces` adapted to complete thel mold lorihr i'oncri-le lillingr l'ornlingg the loor.

l. ln a lireproot lli/ni* wnietrnrtinn havin;f :i concretc lillifn'. .i lifarifig' beam: archbloclh` liaiing rrtir:il mitsininpj walle perY pendicular lo ind adapted to engage with the bearing liv-asn; rciainimg wall between the vnatiininj; wall lagiied lo form :l mold lor the "winding the tension portion ot il;- humilier adapted lo lit aLav i .i @viali the l'orwaril end ol' .in nd i rrinliorcing; rial timiwcoo a.; :v i member and to lie la'ani.

5. .ifcli tion hiring' fx were@ lining and ing-anw. coi:- siatimg' nl' i l l'ning walls haiing netcom anni inl" walls. lfrliveen and lul'nml int z if liv r'fliatsiiiiiiig Rall. portiow il rsh-nl are adapted to lorm part oi' a mold im' lin' concrete snrri'inndingr the i-.nmon portii n ol' the hcanz: vertical retain-- insg' wallN lwivcen and l'orn'ied integrally will! tilc i i conjunction will; the forni part it a mold rolnzdinel 'In' lewin; portion of the lucani. and top lafmand l' riiw1l inte- ;frrllv with thc netaininii walls. ada'iited to l'orm par( ol' a '.'nolfl for (he concrete at the top ot ani bctnein they beanie.

l. ln a coinvolge llonr affirm inning a con-- l beam;

ireprool' construir @laid bottoni nella` to lor the eonexete fam of :i rods inetainiwf lirilie will :mb l loria. ille arrenejt.' valla wircen lhaincnibcre :wwtainingg walls adapted to ari" in.`

form a mold for the concrete surrounding n )moa portion of the beam; and retainwail between the sustaining walls to form a mold for the concrete n., the floor. v in ofnicrete floor system having a wie tilting; tension members of a bear- `f,,-' Tw im; arch-blocks with vertical sustainvfals haring one end formed to receive l ihr tension members of a bearing beam, and

strengthen the com-rete; filling blocks with vertical sustaining walls adapted to fit against the sustaining walls of the archblocks; and retaining walls between the sustaining walls of the filling blocks adapted to act in conjunction with the retaining walls of the arch-blocks to form a mold for theconcrete forming the Hoor.

In a concrete floor system, reinforcing members of a bearing beam; arch-blocks forming a unitary part of the said bearing beam; vertical sustaining walls in the said arch-blocks; retaining walls connecting the sustaining walls, and adapted to form part of a mold for the concrete surrounding and forming part of the bearing beam; a. filling block haring sustaining walls adapted to register with and bear against the forward ends of the sustaining walls of the archblocks; retaining walls connecting the sustaining walls of the filling blocks, and adapted to act in conjunction with the retaining walls of the arch-blocks to form a mold for the concrete of the Hoor; and a. filling upon the said retaining walls.

In a concrete floor system, reinforcing members of a bearing beam; arch-blocks forming a unitary part of said bearing beam; vertical sustaining walls in the said arch-blocks; retaining walls connecting the sustaining walls, forming part of the mold for the ing members, and part of the fireof the bearing beam; adapted to connect ward ends of the roofing reinforcing-rods with and sustain the forsaid arch-blocks; a filling block having sustaining Walls adapted to bear against the forward ends of the sustaining walls of the arch-blocks; retainin walls connecting the sustaining Walls of the filling blocks; and a filling upon the said retaining walls.

EINVIN R. STORM. Witnesses EDWIN Toni-nonni, JULIUs EuLANDsnN.

concrete surrounding the reinforch 

